I've just been reading about active lurking - what a great concept! I must say it sits up there with Ron Carter's 'purposefully vague' and Jim Gee's 'pleasantly frustrating'. Active lurking can be used to describe that early stage when you just watch what's going down online - in a discussion, in social software or in a virtual world. You're watching and learning, rather like young children do, just before they join in. It reminds me of the idea of the silent period we used to refer to in second language acquisition. The idea being that you are actively learning the rules of the game, but not yet ready to participate. Of course, the frustrating part for the teacher or facilitator is working out whether the lurking is shirking - when that attentiveness has become passivity. Still, feel free to actively lurk in the blogosphere. I'll only know if you've moved on when you leave a comment!